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Finding the Fourth Proportional to 407,526.95, 610,495.17 and 266,859.11

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Solution

The fourth proportional to 407,526.95, 610,495.17 and 266,859.11 is: 399,767.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,526.95 : 610,495.17 = 266,859.11 : x
  2. Step 2: Convert to fraction form
    407,526.95/610,495.17 = 266,859.11/x
  3. Step 3: Cross multiply
    407,526.95x = 610,495.17 × 266,859.11
  4. Step 4: Simplify right side
    407,526.95x = 162,916,194,673.02
  5. Step 5: Solve for x
    x = 162,916,194,673.02/407,526.95
  6. Step 6: Final answer
    x = 399,767.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.